MCP3911 데이터 시트보기 (PDF) - Microchip Technology

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MCP3911

3.3V Two-Channel Analog Front End

Microchip Technology 

MCP3911

TABLE 1-3: SERIAL AC CHARACTERISTICS TABLE

Electrical Specifications: Unless otherwise indicated, all parameters apply at DVDD = 2.7 to 3.6V,

TA = -40°C to +125°C, GAIN = 1, CLOAD = 30 pF.

Characteristics

Sym Min

Typ

Max

Units

Test Conditions

Serial Clock frequency

fSCK

—

CS setup time

tCSS

25

CS hold time

tCSH

50

CS disable time

tCSD

50

Data setup time

tSU

5

Data hold time

tHD

10

Serial Clock high time

tHI

20

Serial Clock low time

tLO

20

Serial Clock delay time

tCLD

50

Serial Clock enable time

tCLE

50

Output valid from SCK low

tDO

—

Modulator output

valid from AMCLK high

tDOMDAT —

—

20

MHz

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

—

ns

—

25

ns

—

1/(2 x AMCLK)

s

Output hold time

tHO

0

—

—

ns

Output disable time

tDIS

—

—

25

ns

Reset Pulse Width (RESET) tMCLR 100

—

—

ns

Data Transfer Time to DR

(Data Ready)

tDODR

—

25

ns

Modulator Mode Entry to

Modulator Data Present

tMODSU

—

100

ns

Data Ready Pulse Low Time tDRP

1/DMCLK

—

µs

Note 1: This parameter is periodically sampled and not 100% tested.

2: This parameter is established by characterization and not production tested.

(Note 1)

(Note 1)

(Note 2)

TABLE 1-4: TEMPERATURE SPECIFICATIONS TABLE

Electrical Specifications: Unless otherwise indicated, all parameters apply at AVDD = 2.7 to 3.6V, DVDD = 2.7 to

3.6V.

Parameters

Sym Min Typ Max Units

Conditions

Temperature Ranges

Operating Temperature Range

Storage Temperature Range

Thermal Package Resistances

TA

-40

—

+125

TA

-65

—

+150

°C Note 1

°C

Thermal Resistance, 20L QFN

θJA

—

43

—

°C/W

Thermal Resistance, 20L SSOP

θJA

—

87.3

—

°C/W

Note 1: The internal junction temperature (TJ) must not exceed the absolute maximum specification of +150°C.

 2012-2013 Microchip Technology Inc.

DS20002286C-page 7

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